Meh, you guys are all viewing it as just nav. It is more than nav, it is a better way to play music, dvd movies, etc. Map updates are easy when you get the FSC code cheaper and do it yourself.
The e90 looks plain inside without iDrive and cheap. With iDrive it looks more expensive and gives you more. I can send directions from my computer to my car with google maps. So simple.
I also find that people who don't have it will despise it because they don't have it. Weird.
'09 LCI 335i E90 in BSM over Oyster Dakota Leather, Manual, Sport, Navigation, Individual Audiophile, Executive, Active Steering, JB4 + MHD BEF, 335is Exhaust w/AWE Tuning Tips, AFE DCI, Euro Tails/Fog Light Switch, various painted and other OEM + mods, 19" M5 reps summer
'13 MINI Cooper S Paceman JCW R61in Light White & Black Roof/Mirror Caps/Sport Stripes, Loaded + Rare